package cn.maidouya.pay.utils;

import cn.maidouya.pay.config.AlipayConfig;
import cn.maidouya.pay.domain.AlipayInfo;
import cn.maidouya.pay.domain.PayBill;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;

public class AlipayUtils {
    public static String pay(AlipayInfo info, PayBill bill) {
        try {
            // 获得初始化的alipayclient
            AlipayClient alipayClient = new DefaultAlipayClient(
                    AlipayConfig.gatewayUrl,
                    info.getAppid(),
                    info.getMerchant_private_key(),
                    "json",
                    AlipayConfig.charset,
                    info.getAlipay_public_key(),
                    AlipayConfig.sign_type);

            // 设置请求参数
            AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
            alipayRequest.setReturnUrl(AlipayConfig.return_url);
            alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

            //  商户订单号，商户网站订单系统中唯一订单号，必填
            String out_trade_no = bill.getUnionPaySn();
            // 付款金额，必填
            String total_amount = bill.getMoney().toString();
            // 订单名称，必填
            String subject = bill.getDigest();
            // 商品描述，可空
            String body = bill.getDigest();

            alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                    + "\"total_amount\":\""+ total_amount +"\","
                    + "\"subject\":\""+ subject +"\","
                    + "\"body\":\""+ body +"\","
                    + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

            //请求
            String result = alipayClient.pageExecute(alipayRequest).getBody();
            return result;
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        return null;

    }
}